单词 | 杀菌灯 |
释义 | 〔xenon〕A colorless, odorless, highly unreactive gaseous element found in minute quantities in the atmosphere, extracted commercially from liquefied air and used in stroboscopic, bactericidal, and laser-pumping lamps. Atomic number 54; atomic weight 131.30; melting point -111.9°C; boiling point -107.1°C; density (gas) 5.887 grams per liter; specific gravity (liquid) 3.52 (-109°C). See table at element 氙:一种无色、无味、高度惰性的气体元素,在大气中含量极少,可以从液态空气中分离得到,用于频闪观测灯、杀菌灯和镭射充能灯中。原子数为54;原子量为131.30;熔点-111.9°C;沸点-107.1°C;每升纯氙重5.887克;比重(液体)3.52(在-109°C时) 参见 element |
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